Apologies if this is a boring topic but I have a question concerning qualification for work in Thailand.

I've been teaching in Japan now for seven years and have been throwing around the idea for a while now about moving to Thailand. In terms of credentials, I have a BA and the experience.

I've been thinking recently about taking the TEFL course here in Tokyo. Would this course be a waste of time in terms of getting a better job? I'd like to take the course anyway to improve in certain areas of my teaching. But is there a better course for Thailand and Vietnam?

Looks to me like I could get a job pretty easily with what I already have but could it make a difference?